[media] videodev2.h: add COLORSPACE_DEFAULT

V4L2_COLORSPACE_DEFAULT is added so we have a specific define for
the default case where applications do not set it but leave it to 0.
In that case the driver will set the colorspace based on what it
captures.

This is already used, but we never had a define for the value 0.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index bda496adb50b959514679295eb767a0c7bcac0a2..c5e89ab21cd9cfac74013b2e329a8f230b8ac994 100644 (file)
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -178,6 +178,12 @@ enum v4l2_memory {
 
 /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
 enum v4l2_colorspace {
+       /*
+        * Default colorspace, i.e. let the driver figure it out.
+        * Can only be used with video capture.
+        */
+       V4L2_COLORSPACE_DEFAULT       = 0,
+
        /* SMPTE 170M: used for broadcast NTSC/PAL SDTV */
        V4L2_COLORSPACE_SMPTE170M     = 1,